EP2218860B1 - Oven door opening and closing device - Google Patents
Oven door opening and closing device Download PDFInfo
- Publication number
- EP2218860B1 EP2218860B1 EP09011103.0A EP09011103A EP2218860B1 EP 2218860 B1 EP2218860 B1 EP 2218860B1 EP 09011103 A EP09011103 A EP 09011103A EP 2218860 B1 EP2218860 B1 EP 2218860B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- oven door
- hinge
- closing
- oven
- predetermined
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000013016 damping Methods 0.000 claims abstract description 35
- 238000006243 chemical reaction Methods 0.000 claims description 8
- 230000001131 transforming effect Effects 0.000 claims 1
- 239000000872 buffer Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/1041—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance with a coil spring perpendicular to the pivot axis
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
- E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
- E05F1/1253—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring
- E05F1/1261—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a compression spring for counterbalancing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F3/00—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices
- E05F3/14—Closers or openers with braking devices, e.g. checks; Construction of pneumatic or liquid braking devices with fluid brakes of the rotary type
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F5/00—Braking devices, e.g. checks; Stops; Buffers
- E05F5/02—Braking devices, e.g. checks; Stops; Buffers specially for preventing the slamming of swinging wings during final closing movement, e.g. jamb stops
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
- E05F1/1246—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis
- E05F1/1269—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring
- E05F1/1276—Mechanisms in the shape of hinges or pivots, operated by springs with a coil spring perpendicular to the pivot axis with a traction spring for counterbalancing
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F1/00—Closers or openers for wings, not otherwise provided for in this subclass
- E05F1/08—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings
- E05F1/10—Closers or openers for wings, not otherwise provided for in this subclass spring-actuated, e.g. for horizontally sliding wings for swinging wings, e.g. counterbalance
- E05F1/12—Mechanisms in the shape of hinges or pivots, operated by springs
- E05F1/1292—Mechanisms in the shape of hinges or pivots, operated by springs with a gas spring
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/21—Brakes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/20—Brakes; Disengaging means; Holders; Stops; Valves; Accessories therefor
- E05Y2201/262—Type of motion, e.g. braking
- E05Y2201/266—Type of motion, e.g. braking rotary
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2201/00—Constructional elements; Accessories therefor
- E05Y2201/60—Suspension or transmission members; Accessories therefor
- E05Y2201/622—Suspension or transmission members elements
- E05Y2201/71—Toothed gearing
- E05Y2201/722—Racks
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/30—Application of doors, windows, wings or fittings thereof for domestic appliances
- E05Y2900/308—Application of doors, windows, wings or fittings thereof for domestic appliances for ovens
Definitions
- the present invention relates to an oven door opening and closing device and to an oven including such a device.
- Oven opening and closing devices often comprise one or more hinges, which are fixed to the door as well as to the housing of the oven, such that a user can open and close the oven door by means of a pivoting movement.
- oven opening and closing devices usually contain at least one closing force generating means for generating a predetermined closing force. This closing force needs to be selected in such a manner, that a good sealing performance between the oven door and the housing of the oven is achieved.
- high closing forces lead to undesirable loud impact noises when closing the oven door. Therefore, it was proposed to provide buffers at the front frame of the oven housing in order to absorb at least part of the impact force. However, such buffers cannot completely remove the impact noises.
- the return force provided by a buffer has adverse effects on the closing force and hence on the sealing function realized by the closing force generating means.
- the buffers are arranged at a visible location, which might violate the appearance of the oven.
- Oven opening and closing devices are known from DE 20 2007 012 603 U1 , DE 10 2005 045 365 A1 , US 2003/0056328 A1 and EP 1 847 670 A2 .
- Damping systems are disclosed in DE 2006 040 211 A1 and US 2002/0096405 A1 .
- an object of the present invention to provide an oven opening and closing device, which has an alternative configuration in order to eliminate the foregoing drawbacks. Moreover, it is an object of the present invention to provide an oven comprising such an oven door opening and closing device.
- the oven door opening and closing device comprises one or more hinges, which are connectable to an oven door and to an oven housing. Such hinges realize a predetermined pivoting opening and closing movement of the oven door relative to the oven housing between an open and a closed position, whereby the angle between the open and the closed position is preferably about 90 degree.
- the device comprises at least one closing force generating means for generating a predetermined closing force, which presses the oven door against the oven housing in the closed position of the oven door in order to achieve a desired sealing effect.
- kinematic means are provided, which are coupled to the hinge and to a moveable element in such a manner, that the predetermined pivoting opening and closing movement of the hinge is converted into a predetermined reciprocating opening and closing movement of the moveable element.
- the kinematic means are, e.g. of mechanical nature and may comprise a combination of gear and rack, connecting rods, etc.
- the oven door opening and closing device according to the present invention contains at least one damping system.
- the damping system comprises a rotary damper for generating a damping force. This damping force counteracts the closing movement of the movable element within a predetermined section or range, which corresponds to a predetermined angle section of the pivoting closing movement of the hinge. Accordingly, the pivoting movement of the oven door is slowed down during its closing movement, preferably about the last 30 degree of the closing movement, in order to eliminate the impact noise.
- the kinematic means, the moveable element and the damping system can be arranged in such a manner that they are not visible from outside. Accordingly, the appearance of the oven is not deteriorated by theses components.
- One or more hinge housings are provided, which are fixable to the oven housing.
- Each hinge housing accommodates a hinge, a kinematic mechanism, a moveable element as well as a damping system. Accordingly, the installation and handling of the oven door opening and closing device according to the present invention is improved.
- the movable element is preferably guided within the hinge housing in order to insure an accurate reciprocating movement.
- the damping system comprises a conversion mechanism, which comprises a threaded spindle and a spindle nut.
- the rotary damper comprises said threaded nut screwed onto said spindle to form said rotary damper.
- the damping system comprises returning means for returning the component, which is to be damped my means of the damper, e.g. the threaded spindle, in a predetermined position after damping is completed.
- the present invention provides an oven comprising an oven door opening and closing device having the above-mentioned construction.
- the first to fifth embodiment are not embodiments of the present invention.
- FIG 1 is a schematic side view of a first embodiment of an oven door opening and closing device 10, and figure 2 is an enlarged view of the section II in figure 1 .
- the oven door opening and closing device 10 serves for opening and closing an oven door 12 of an oven, which is not illustrated in the figures. In figure 1 the oven door 12 is arranged in its opened position.
- the oven door opening and closing device 10 comprises a hinge 14, a hinge housing 16, a closing force generating means 17, which forms a part of kinematic means 18, a movable element 20, a conversion mechanism 22, a rotary element 24 and a damping system 26.
- the hinge 14 is fixed to the oven door 12 and to the hinge housing 16 in such a manner that the oven door 12 can perform a predetermined pivoting opening and closing movement around the rotary axis 13 and relative to the oven housing between an open position shown in figure 1 and a closed position shown in figure 5 , whereby the pivoting angle between these two positions is about 90 degree.
- the hinge housing 16 is a longish element, which is fixed to the oven housing.
- the hinge housing 16 may be produced by bending a longish sheet-metal. However, it is also possible to use adequate profiles or the like.
- the closing force generating means 17 is provided in form of a spring and biases the oven door 12 towards the oven housing, when the oven door 12 is arranged in its closed position.
- the kinematic means 18 are inserted in the hinge housing 16 and coupled to the hinge 14 and to the moveable element 20 in such a manner, that the predetermined pivoting opening and closing movement of the hinge 14 is converted into a predetermined reciprocating opening and closing movement of the moveable element 20, which is guided within the hinge housing 16.
- the kinematic means 18 are not illustrated in detail in the figures. They are, e.g. of mechanical nature and may comprise a combination of gear and rack, connecting rods, etc., in order to convert the pivotal movement of the hinge 14 into a reciprocating linear movement.
- the conversion mechanism 22 is formed in such a manner that it partially transforms the reciprocating movement of the moveable element 20 into a rotational movement of a rotary element 24, which has the form of a threaded spindle.
- the conversion mechanism 22 comprises a spindle nut 28, in which one free end of the rotary element 24 is inserted, a slide bush 30, in which the other free end of the rotary element 24 is firmly held and which slidingly bears against the hinge housing 16, and a spring 32, which biases the slide bush 30 together with the rotary element 24 in the direction away from the spindle nut 28 (to the left in figures 1 and 2 ).
- the damping system 26 comprises a rotary damper 34, which is fixed to the end of the spindle nut 28 opposed to the rotary element 24 and serves for damping the rotational movement of the rotary element 24.
- the rotary damper comprises an inner part 34a which extends along its axis circumferentially surrounded by an outer part 34b.
- the threaded spindle 24 interacts with the inner part 34a of the rotary damper 34.
- the threaded spindle can also interact with the outer part of the rotary damper.
- the rotary damper can comprise the spindle nut and/or the threaded spindle.
- the oven door 12 For closing the oven door 12 - starting from its opened position shown in figure 1 - the oven door 12 is rotated around the rotary axis 13 by a user.
- This pivoting movement of the oven door 12 or of the hinge 14 is converted by the help of the kinematic means 18 into a linear movement, which is transferred to the movable element 20, such that the movable element 20 - starting from its position shown in figure 1 - is moved to the right.
- the movable element 20 can freely slide within the hinge housing 16.
- the upstanding portion 35 of the movable element 20 comes into contact with the rotary element 24, as it is best shown in figure 4 , which is an enlarged view of the section IV in figure 3 . Accordingly, the rotary element 24 is pushed to the right against the force of the spring 32 and rotated, when the oven door 12 is moved further towards its closed position.
- the speed or damping of the closing movement within the angle section ⁇ of the oven door 12 can be adjusted by means of changing the incline of the steep threads of the rotary element 24 and of the spindle nut 28 and/or the damping force of the rotary damper 34. Moreover, it is possible to freely define, adjust and change the angle section ⁇ .
- the spring 38 which is arranged at the free end of the hinge housing 16, serves for compensating the weight of the oven door 12 while opening it.
- the arrangement of such springs is known in prior art technology. Therefore, the arrangement of the spring 38 is not described in detail herein.
- FIG. 7 is a schematic side view of a second embodiment of an oven door opening and closing device 40 for opening and closing an oven door 12.
- the oven door opening and closing device 40 comprises a hinge 14, a hinge housing 16, kinematic means 18, a movable element 42, a conversion mechanism 44, a rotary element 46 and a damping system 48 as main components.
- the construction of the hinge 14 and the kinematic means 18 essentially corresponds to the one shown in figures 1 to 6 .
- the movable element 42 is formed as a rod, which extends through the hinge housing 16 and is guided therein. Accordingly, the movable element 42 performs a reciprocating linear movement, when the oven door 12 is opened and closed.
- the conversion mechanism 44 is arranged, which is provided in form of a rack, which meshes with the rotary element 46, which has the form of a gear.
- the rotary element 46 is operatively connected to a rotary damper 52 of the damping system 48, which damps the rotary movement of the rotary element 46.
- the damping of the closing movement as well as the predetermined closing angle range (see angle P in figure 3 ) can be adjusted, in which the damping takes place.
- FIG 8 is a schematic side view of a third embodiment of an oven door opening and closing device 60 for opening and closing an oven door 12.
- the oven door opening and closing device 60 essentially corresponds to the device 40 shown in figure 7 . It comprises a hinge 14, a hinge housing 16, kinematic means 18, a movable element 42 and a damping system 62 as main components.
- the construction of the hinge 14, the kinematic means 18 and the movable element 42 essentially corresponds to the one shown in figure 7 . Accordingly, the movable element 42 performs a reciprocating linear movement, when the oven door 12 is opened and closed.
- An air damper 64 of the damping system 62 is operatively connected to the movable element 42, which at least partially damps the linear closing movement of the movable element 42. Accordingly, the closing movement of the oven door 12 is also damped. As soon as the oven door 12 is opened again, the air damper 64 returns to its initial position.
- FIG 9 is a schematic side view of a forth embodiment of an oven door opening and closing device 70.
- This oven door opening and closing device 70 essentially corresponds to the oven door opening and closing device 60 shown in figure 8 .
- the air damper 64 of the oven door opening and closing device 60 is replaced by a hydraulic damper 72, which is positioned outside the hinge housing 16.
- the principal functioning is the same.
- FIG 10 is a schematic side view of a variant of forth embodiment of the oven door opening and closing device 70 shown in Figure 9 .
- the hydraulic damper 72 is integrated in the hinge housing 16.
- FIG 11 is a schematic side view of a fifth embodiment of an oven door opening and closing device 80 according to the present invention for opening and closing an oven door 12.
- the oven door opening and closing device 80 comprises a hinge 14, a hinge housing 16, kinematic means 18, a movable element 82, a damping system 84 and a restoring spring 54 as main components.
- the constructions of the hinge 14 and the kinematic means 18 essentially correspond to the ones of the foregoing embodiments.
- the movable element 82 is formed as a movable bolt. Accordingly, the movable element 82 performs a reciprocating linear movement, when the oven door 12 is opened and closed.
- One free end of the restoring spring 54 is fixed to the movable element 82.
- the other free end of the restoring spring 54 is held by a bolt 86, which is fixedly positioned within the hinge housing 16. Accordingly, the restoring spring 54 is lengthened, when the oven door 12 is opened, in order to compensate the weight of the oven door 12.
- a hydraulic or pneumatic damper 88 is fixed to the movable element 82 and the bolt 86 and extends inside the restoring spring 54. Accordingly, the movement of the movable element to the right and thus the closing movement of the oven door 12 are damped by means of the damper 88.
- Figures 12 to 15 show schematic cross sectional views of a sixth embodiment of an oven door opening and closing device 90 according to the present invention for opening and closing an oven door 12.
- Figure 12 shows a schematic cross sectional view of the central area of the sixth embodiment of an oven door opening and closing device according to the present invention.
- Figure 13 is a schematic side view of the sixth embodiment of an oven door opening and closing device in Figure 12 according to the present invention, whereby the oven door is arranged in its opened position.
- Figure 14 is a schematic side view of the oven door opening and closing device according to the sixth embodiment, whereby the oven door is pivoted towards its closed position by a pivoting angle of 60 degrees.
- Figure 15 is a schematic side view of the oven door opening and closing device according to the sixth embodiment, whereby the oven door is arranged in its closed position.
- the oven door opening and closing device 90 comprises a rotary damper 95 with a spindle 952 as a rotary element and furthermore comprises a threaded nut 951, a cylindrical body 956, a damper stop element 953, a guiding means 954 as well as a ring shaped element 955 and a spring 957.
- the guiding means 954 is also substantially ring-shaped and embraces the spindle 952 along its central part, is fixed to the hinge housing 16 and serves as one fixing element for the spring 957.
- the door sided end of the spring 957 is fixed to the spindle 952.
- the threaded nut 951 embraces the spindle around its part directed away from the door and is attached to the door sided end of the cylindrical body 956, wherein the threaded nut 951 and the cylindrical body 956 form a single piece.
- the damper stop element 953 is rotatably fixed.
- the movable element 96 can freely slide within the hinge housing. As soon as the pivoting angle ⁇ of 60 degree is reached, the upstanding portion of the movable element 96 comes into interacting connection with the spindle 952 as rotary element, as shown in figure 12 .
- the ring shaped element 955 is arranged around the spindle 952 near the door-sided end of the spindle.
- the moveable element 96 is pushed against the ring shaped element 955 and against the force of the spring 957 and the spindle is rotated, when the oven door 12 is moved further towards its closed position.
- the rotary movement of the spindle 952 is damped by means of the threaded nut 951 which is embracing, as an interacting connection, the spindle 952 in such a way that the pivoting movement of the oven door 12 is slowed down within the pivoting angle ⁇ shown in figure 14 , which is about 30 degree.
- the impact noise can be eliminated, when the oven door 12 comes into contact with the oven housing in the closed position of the oven door 12 as shown in figure 15 .
- damper stop element 953 implements a free run function, which means that the damping function is working in one direction only.
- all of the above-described embodiments provide oven door opening and closing devices, which are not visible, when the oven is regarded from outside. Accordingly, the appearance of the oven is not adversely effected by such oven door opening and closing devices. Moreover, all of the above-mentioned oven door opening and closing devices are adjustable with respect to the damping force for slowing down the closing movement of the oven door. Furthermore, the above-described first, second, third and fourth embodiments of oven door opening and closing devices according to the present invention are also adjustable with respect to the pivoting angle range (angle ⁇ in figure 3 ), in which a damping of the closing movement of the oven door takes place.
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- Electric Ovens (AREA)
- Vending Machines For Individual Products (AREA)
- Constitution Of High-Frequency Heating (AREA)
- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
- Special Wing (AREA)
Abstract
Description
- The present invention relates to an oven door opening and closing device and to an oven including such a device.
- Oven opening and closing devices often comprise one or more hinges, which are fixed to the door as well as to the housing of the oven, such that a user can open and close the oven door by means of a pivoting movement. Moreover, oven opening and closing devices usually contain at least one closing force generating means for generating a predetermined closing force. This closing force needs to be selected in such a manner, that a good sealing performance between the oven door and the housing of the oven is achieved. However, high closing forces lead to undesirable loud impact noises when closing the oven door. Therefore, it was proposed to provide buffers at the front frame of the oven housing in order to absorb at least part of the impact force. However, such buffers cannot completely remove the impact noises. Moreover, the return force provided by a buffer has adverse effects on the closing force and hence on the sealing function realized by the closing force generating means. Finally, the buffers are arranged at a visible location, which might violate the appearance of the oven. Oven opening and closing devices are known from
DE 20 2007 012 603 U1 ,DE 10 2005 045 365 A1 ,US 2003/0056328 A1 andEP 1 847 670 A2 . Damping systems are disclosed inDE 2006 040 211 A1 andUS 2002/0096405 A1 . - Starting from this prior art technology, it is an object of the present invention to provide an oven opening and closing device, which has an alternative configuration in order to eliminate the foregoing drawbacks. Moreover, it is an object of the present invention to provide an oven comprising such an oven door opening and closing device.
- The above-mentioned objects are solved by providing an oven door opening and closing device according to claim 1 and an oven according to claim 6. The dependent claims refer to individual embodiments of the present invention.
- The oven door opening and closing device according to the present invention comprises one or more hinges, which are connectable to an oven door and to an oven housing. Such hinges realize a predetermined pivoting opening and closing movement of the oven door relative to the oven housing between an open and a closed position, whereby the angle between the open and the closed position is preferably about 90 degree. Moreover, the device comprises at least one closing force generating means for generating a predetermined closing force, which presses the oven door against the oven housing in the closed position of the oven door in order to achieve a desired sealing effect. Furthermore, kinematic means are provided, which are coupled to the hinge and to a moveable element in such a manner, that the predetermined pivoting opening and closing movement of the hinge is converted into a predetermined reciprocating opening and closing movement of the moveable element. The kinematic means are, e.g. of mechanical nature and may comprise a combination of gear and rack, connecting rods, etc. Moreover, the oven door opening and closing device according to the present invention contains at least one damping system. The damping system comprises a rotary damper for generating a damping force. This damping force counteracts the closing movement of the movable element within a predetermined section or range, which corresponds to a predetermined angle section of the pivoting closing movement of the hinge. Accordingly, the pivoting movement of the oven door is slowed down during its closing movement, preferably about the last 30 degree of the closing movement, in order to eliminate the impact noise.
- Moreover, the kinematic means, the moveable element and the damping system can be arranged in such a manner that they are not visible from outside. Accordingly, the appearance of the oven is not deteriorated by theses components.
- One or more hinge housings are provided, which are fixable to the oven housing. Each hinge housing accommodates a hinge, a kinematic mechanism, a moveable element as well as a damping system. Accordingly, the installation and handling of the oven door opening and closing device according to the present invention is improved. Moreover, the movable element is preferably guided within the hinge housing in order to insure an accurate reciprocating movement.
- The damping system comprises a conversion mechanism, which comprises a threaded spindle and a spindle nut.
- The rotary damper comprises said threaded nut screwed onto said spindle to form said rotary damper.
- Preferably, the damping system comprises returning means for returning the component, which is to be damped my means of the damper, e.g. the threaded spindle, in a predetermined position after damping is completed.
- Moreover, the present invention provides an oven comprising an oven door opening and closing device having the above-mentioned construction.
- The detailed configuration, features and advantages of the present invention will become apparent in the course of the following description with reference to the accompanying drawings.
- Figure 1
- is a schematic side view of a first embodiment of an oven door opening and closing device, whereby the oven door is arranged in its opened position;
- Figure 2
- is an enlarged view of the section II in
figure 1 ; - Figure 3
- is a schematic side view of the oven door opening and closing device according to the first embodiment, whereby the oven door is pivoted towards its closed position by a pivoting angle of 60 degrees;
- Figure 4
- is an enlarged view of the section IV in
figure 3 ; - Figure 5
- is a schematic side view of the oven door opening and closing device according to the first embodiment, whereby the oven door is arranged in its closed position;
- Figure 6
- is an enlarged view of the section VI in
figure 5 ; - Figure 7
- is a schematic side view of a second embodiment of an oven door opening and closing device;
- Figure 8
- is a schematic side view of a third embodiment of an oven door opening and closing device;
- Figure 9
- is a schematic side view of a forth embodiment of an oven door opening and closing device;
- Figure 10
- is a schematic side view of a variant of forth embodiment of an oven door opening and closing device shown in
Figure 9 ; - Figure 11
- is a schematic side view of a fifth embodiment of an oven door opening and closing device;
- Figure 12
- is a schematic cross sectional view of the central area of a sixth embodiment of an oven door opening and closing device according to the present invention;
- Figure 13
- is a schematic side view of the sixth embodiment of the oven door opening and closing device in
Figure 12 according to the present invention, whereby the oven door is arranged in its opened position; - Figure 14
- is a schematic side view of the oven door opening and closing device according to the sixth embodiment, whereby the oven door is pivoted towards its closed position by a pivoting angle of 60 degrees and
- Figure 15
- is a schematic side view of the oven door opening and closing device according to the sixth embodiment, whereby the oven door is arranged in its closed position.
- Below, an embodiment of the present invention which is denominated as sixth embodiment will be described with reference to the figures. In these figures, like parts or portions are denoted by like reference numerals.
- The first to fifth embodiment are not embodiments of the present invention.
-
Figure 1 is a schematic side view of a first embodiment of an oven door opening andclosing device 10, andfigure 2 is an enlarged view of the section II infigure 1 . The oven door opening andclosing device 10 serves for opening and closing anoven door 12 of an oven, which is not illustrated in the figures. Infigure 1 theoven door 12 is arranged in its opened position. - As main components the oven door opening and
closing device 10 comprises ahinge 14, ahinge housing 16, a closing force generating means 17, which forms a part of kinematic means 18, amovable element 20, aconversion mechanism 22, arotary element 24 and a dampingsystem 26. - The
hinge 14 is fixed to theoven door 12 and to thehinge housing 16 in such a manner that theoven door 12 can perform a predetermined pivoting opening and closing movement around therotary axis 13 and relative to the oven housing between an open position shown infigure 1 and a closed position shown infigure 5 , whereby the pivoting angle between these two positions is about 90 degree. - The
hinge housing 16 is a longish element, which is fixed to the oven housing. Thehinge housing 16 may be produced by bending a longish sheet-metal. However, it is also possible to use adequate profiles or the like. - The closing force generating means 17 is provided in form of a spring and biases the
oven door 12 towards the oven housing, when theoven door 12 is arranged in its closed position. - The kinematic means 18 are inserted in the
hinge housing 16 and coupled to thehinge 14 and to themoveable element 20 in such a manner, that the predetermined pivoting opening and closing movement of thehinge 14 is converted into a predetermined reciprocating opening and closing movement of themoveable element 20, which is guided within thehinge housing 16. The kinematic means 18 are not illustrated in detail in the figures. They are, e.g. of mechanical nature and may comprise a combination of gear and rack, connecting rods, etc., in order to convert the pivotal movement of thehinge 14 into a reciprocating linear movement. Theconversion mechanism 22 is formed in such a manner that it partially transforms the reciprocating movement of themoveable element 20 into a rotational movement of arotary element 24, which has the form of a threaded spindle. Theconversion mechanism 22 comprises aspindle nut 28, in which one free end of therotary element 24 is inserted, aslide bush 30, in which the other free end of therotary element 24 is firmly held and which slidingly bears against thehinge housing 16, and aspring 32, which biases theslide bush 30 together with therotary element 24 in the direction away from the spindle nut 28 (to the left infigures 1 and 2 ). - The damping
system 26 comprises arotary damper 34, which is fixed to the end of thespindle nut 28 opposed to therotary element 24 and serves for damping the rotational movement of therotary element 24. - The rotary damper comprises an
inner part 34a which extends along its axis circumferentially surrounded by an outer part 34b. - The threaded
spindle 24 interacts with theinner part 34a of therotary damper 34. However, as an alternative, the threaded spindle can also interact with the outer part of the rotary damper. Furthermore, also as an alternative, the rotary damper can comprise the spindle nut and/or the threaded spindle. - For closing the oven door 12 - starting from its opened position shown in
figure 1 - theoven door 12 is rotated around therotary axis 13 by a user. This pivoting movement of theoven door 12 or of thehinge 14 is converted by the help of the kinematic means 18 into a linear movement, which is transferred to themovable element 20, such that the movable element 20 - starting from its position shown infigure 1 - is moved to the right. - Between the opened position of the
oven door 12 shown infigure 1 and a pivoting angle α of 60 degree, which is shown infigure 3 , themovable element 20 can freely slide within thehinge housing 16. As soon as the pivoting angle α of 60 degree is reached, theupstanding portion 35 of themovable element 20 comes into contact with therotary element 24, as it is best shown infigure 4 , which is an enlarged view of the section IV infigure 3 . Accordingly, therotary element 24 is pushed to the right against the force of thespring 32 and rotated, when theoven door 12 is moved further towards its closed position. This rotary movement of therotary element 24 is damped by means of therotary damper 34 of the dampingsystem 26, such that the pivoting movement of theoven door 12 is slowed down within the pivoting angle β shown infigure 3 , which is about 30 degree. In this manner, the impact noise can be eliminated, when theoven door 12 comes into contact with the oven housing in the closed position of theoven door 12 as shown infigures 5 and 6 . - When the
oven door 12 is opened again starting from the closed position illustrated infigures 5 and 6 , themovable element 20 is drawn to the left by the kinematic means 18. Moreover, therotary element 24 is moved to the left by means of thespring 32, until therotary element 24 reaches the position depicted infigures 3 and 4 and comes into contact with thestopper 36, which is arranged within thehinge housing 16. - The speed or damping of the closing movement within the angle section β of the
oven door 12 can be adjusted by means of changing the incline of the steep threads of therotary element 24 and of thespindle nut 28 and/or the damping force of therotary damper 34. Moreover, it is possible to freely define, adjust and change the angle section β. - The
spring 38, which is arranged at the free end of thehinge housing 16, serves for compensating the weight of theoven door 12 while opening it. The arrangement of such springs is known in prior art technology. Therefore, the arrangement of thespring 38 is not described in detail herein. -
Figure 7 is a schematic side view of a second embodiment of an oven door opening andclosing device 40 for opening and closing anoven door 12. Similar to the arrangement shown infigures 1 to 6 , the oven door opening andclosing device 40 comprises ahinge 14, ahinge housing 16, kinematic means 18, amovable element 42, aconversion mechanism 44, arotary element 46 and a dampingsystem 48 as main components. The construction of thehinge 14 and the kinematic means 18 essentially corresponds to the one shown infigures 1 to 6 . Themovable element 42 is formed as a rod, which extends through thehinge housing 16 and is guided therein. Accordingly, themovable element 42 performs a reciprocating linear movement, when theoven door 12 is opened and closed. On the right side of thehinge housing 16 infigure 7 theconversion mechanism 44 is arranged, which is provided in form of a rack, which meshes with therotary element 46, which has the form of a gear. Therotary element 46 is operatively connected to arotary damper 52 of the dampingsystem 48, which damps the rotary movement of therotary element 46. - When the
oven door 12 is transferred form its opened position to its closed position shown infigure 7 , the pivoting movement of theoven door 12 is converted in a linear movement by the kinematic means 18 and transferred to themovable element 42, which is then pushed to the right against therotary damper 52, which is slidingly positioned on the rack. Accordingly, therotary damper 52 is also pushed to the right, so that therotary element 46 meshes with the rack and rotates. The rotary movement of therotary element 46 is damped by means of therotary damper 52. As a consequence, also the closing movement of the door is damped. By varying the position and the damping force of therotary damper 52 and/or the tooth pitch of the rack and therotary element 46, the damping of the closing movement as well as the predetermined closing angle range (see angle P infigure 3 ) can be adjusted, in which the damping takes place. - When the
oven door 12 is opened again, a restoringspring 54 pushes therotary damper 52 back to its initial position. -
Figure 8 is a schematic side view of a third embodiment of an oven door opening andclosing device 60 for opening and closing anoven door 12. The oven door opening andclosing device 60 essentially corresponds to thedevice 40 shown infigure 7 . It comprises ahinge 14, ahinge housing 16, kinematic means 18, amovable element 42 and a dampingsystem 62 as main components. The construction of thehinge 14, the kinematic means 18 and themovable element 42 essentially corresponds to the one shown infigure 7 . Accordingly, themovable element 42 performs a reciprocating linear movement, when theoven door 12 is opened and closed. Anair damper 64 of the dampingsystem 62 is operatively connected to themovable element 42, which at least partially damps the linear closing movement of themovable element 42. Accordingly, the closing movement of theoven door 12 is also damped. As soon as theoven door 12 is opened again, theair damper 64 returns to its initial position. -
Figure 9 is a schematic side view of a forth embodiment of an oven door opening andclosing device 70. This oven door opening andclosing device 70 essentially corresponds to the oven door opening andclosing device 60 shown infigure 8 . However, theair damper 64 of the oven door opening andclosing device 60 is replaced by ahydraulic damper 72, which is positioned outside thehinge housing 16. However, the principal functioning is the same. -
Figure 10 is a schematic side view of a variant of forth embodiment of the oven door opening andclosing device 70 shown inFigure 9 . In this variant, thehydraulic damper 72 is integrated in thehinge housing 16. -
Figure 11 is a schematic side view of a fifth embodiment of an oven door opening and closing device 80 according to the present invention for opening and closing anoven door 12. The oven door opening and closing device 80 comprises ahinge 14, ahinge housing 16, kinematic means 18, amovable element 82, a dampingsystem 84 and a restoringspring 54 as main components. The constructions of thehinge 14 and the kinematic means 18 essentially correspond to the ones of the foregoing embodiments. Themovable element 82 is formed as a movable bolt. Accordingly, themovable element 82 performs a reciprocating linear movement, when theoven door 12 is opened and closed. One free end of the restoringspring 54 is fixed to themovable element 82. The other free end of the restoringspring 54 is held by abolt 86, which is fixedly positioned within thehinge housing 16. Accordingly, the restoringspring 54 is lengthened, when theoven door 12 is opened, in order to compensate the weight of theoven door 12. Moreover, a hydraulic orpneumatic damper 88 is fixed to themovable element 82 and thebolt 86 and extends inside the restoringspring 54. Accordingly, the movement of the movable element to the right and thus the closing movement of theoven door 12 are damped by means of thedamper 88. -
Figures 12 to 15 show schematic cross sectional views of a sixth embodiment of an oven door opening andclosing device 90 according to the present invention for opening and closing anoven door 12. -
Figure 12 shows a schematic cross sectional view of the central area of the sixth embodiment of an oven door opening and closing device according to the present invention.Figure 13 is a schematic side view of the sixth embodiment of an oven door opening and closing device inFigure 12 according to the present invention, whereby the oven door is arranged in its opened position.Figure 14 is a schematic side view of the oven door opening and closing device according to the sixth embodiment, whereby the oven door is pivoted towards its closed position by a pivoting angle of 60 degrees.Figure 15 is a schematic side view of the oven door opening and closing device according to the sixth embodiment, whereby the oven door is arranged in its closed position. - The oven door opening and
closing device 90 comprises a rotary damper 95 with aspindle 952 as a rotary element and furthermore comprises a threadednut 951, a cylindrical body 956, adamper stop element 953, a guiding means 954 as well as a ring shapedelement 955 and aspring 957. - The guiding means 954 is also substantially ring-shaped and embraces the
spindle 952 along its central part, is fixed to thehinge housing 16 and serves as one fixing element for thespring 957. The door sided end of thespring 957 is fixed to thespindle 952. - The threaded
nut 951 embraces the spindle around its part directed away from the door and is attached to the door sided end of the cylindrical body 956, wherein the threadednut 951 and the cylindrical body 956 form a single piece. At the other end of the cylindrical body 956, thedamper stop element 953 is rotatably fixed. - Again, between the opened position of the
oven door 12 shown infigure 13 and a pivoting angle α of 60 degree, which is shown infigure 14 , themovable element 96 can freely slide within the hinge housing. As soon as the pivoting angle α of 60 degree is reached, the upstanding portion of themovable element 96 comes into interacting connection with thespindle 952 as rotary element, as shown infigure 12 . - As a contact element between the upstanding portion of the
movable element 96 and thespindle 952, the ring shapedelement 955 is arranged around thespindle 952 near the door-sided end of the spindle. Themoveable element 96 is pushed against the ring shapedelement 955 and against the force of thespring 957 and the spindle is rotated, when theoven door 12 is moved further towards its closed position. - The rotary movement of the
spindle 952 is damped by means of the threadednut 951 which is embracing, as an interacting connection, thespindle 952 in such a way that the pivoting movement of theoven door 12 is slowed down within the pivoting angle β shown infigure 14 , which is about 30 degree. - Also in this manner, the impact noise can be eliminated, when the
oven door 12 comes into contact with the oven housing in the closed position of theoven door 12 as shown infigure 15 . - Furthermore, the
damper stop element 953 implements a free run function, which means that the damping function is working in one direction only. - It should be noted, that all of the above-described embodiments provide oven door opening and closing devices, which are not visible, when the oven is regarded from outside. Accordingly, the appearance of the oven is not adversely effected by such oven door opening and closing devices. Moreover, all of the above-mentioned oven door opening and closing devices are adjustable with respect to the damping force for slowing down the closing movement of the oven door. Furthermore, the above-described first, second, third and fourth embodiments of oven door opening and closing devices according to the present invention are also adjustable with respect to the pivoting angle range (angle β in
figure 3 ), in which a damping of the closing movement of the oven door takes place. - Although exemplary embodiments of the present invention have been described in detail above, those skilled in the art will readily appreciate that many modifications are possible with respect to the exemplary embodiments, without materially departing from the novel teachings and advantages of this invention. Accordingly, all such modifications are intended to be included within the scope of the present invention, which is defined by the claims.
Claims (6)
- An oven door opening and closing device (90) comprising- at least one hinge (14), which is connectable to an oven door (12) and to an oven housing for realizing a predetermined pivoting opening and closing movement of the oven door (12) relative to the oven housing between an open and a closed position;- at least one closing force generating means (17) for generating a predetermined closing force;- kinematic means, which are coupled to the hinge (14) and to a moveable element (96) in such a manner, that the predetermined pivoting opening and closing movement of the hinge (14) is converted into a predetermined reciprocating opening and closing movement of the moveable element (96); and- at least one damping system (95) having a damper (951, 952) for generating a damping force which counteracts the closing movement of the movable element (96) within a predetermined section, which corresponds to a predetermined angle section (β) of the pivoting closing movement of the hinge (14) shortly prior to the closed position,- at least one hinge housing (16) which is fixable to the oven housing, wherein each hinge housing (16) accommodates one of the at least one hinge (14), the kinematic means, the moveable element (96) and one of the at least one damping system (95),- wherein the damping system (95) comprises a conversion mechanism for transforming the linear movement of the moveable element (96) into a rotational movement of a rotary element (952), and wherein the damper is a rotary damper (951, 952) for damping said rotational movement of the rotary element (952),
characterized in that- the conversion mechanism comprises a threaded spindle (952) and a spindle nut (951),- the rotary element is the spindle (952), and- the rotary damper comprises said threaded nut (951) screwed onto said spindle (952) to form said rotary damper. - An oven door opening and closing device (90) according to claim 1, characterized in that the predetermined angle (α+β) between the open and the closed position is about 90 degree.
- An oven door opening and closing device (90) according to claim 1, characterized in that the movable element (96) is guided within the hinge housing (16).
- An oven door opening and closing device (90) according to one of the foregoing claims, characterized in that the predetermined angle section (β) of the pivoting closing movement of the hinge (16) reaches from an opening angle of about 30 degree to 0 degree, which corresponds to the closed position of the hinge (14),
- An oven door opening and closing device (90) according to one of the foregoing claims, characterized in that the damping system (95) comprises returning means for returning the component, which is to be damped, in a predetermined position.
- An oven comprising an oven door opening and closing device (90) according to one of the foregoing claims.
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL09011103T PL2218860T3 (en) | 2009-02-13 | 2009-08-29 | Oven door opening and closing device |
EP09011103.0A EP2218860B1 (en) | 2009-02-13 | 2009-08-29 | Oven door opening and closing device |
US13/147,233 US9074400B2 (en) | 2009-02-13 | 2010-01-20 | Oven door opening and closing device |
AU2010213212A AU2010213212B2 (en) | 2009-02-13 | 2010-01-20 | Oven door opening and closing device |
CN201080005018.0A CN102292512B (en) | 2009-02-13 | 2010-01-20 | Oven door opening and shutoff device |
CA2752439A CA2752439A1 (en) | 2009-02-13 | 2010-01-20 | Oven door opening and closing device |
PCT/EP2010/000299 WO2010091770A1 (en) | 2009-02-13 | 2010-01-20 | Oven door opening and closing device |
BRPI1008428A BRPI1008428A2 (en) | 2009-02-13 | 2010-01-20 | oven door opening and closing device. |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09002011A EP2218859B1 (en) | 2009-02-13 | 2009-02-13 | Oven door opening and closing device |
EP09011103.0A EP2218860B1 (en) | 2009-02-13 | 2009-08-29 | Oven door opening and closing device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2218860A1 EP2218860A1 (en) | 2010-08-18 |
EP2218860B1 true EP2218860B1 (en) | 2014-10-01 |
Family
ID=40888259
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09002011A Active EP2218859B1 (en) | 2009-02-13 | 2009-02-13 | Oven door opening and closing device |
EP09011103.0A Active EP2218860B1 (en) | 2009-02-13 | 2009-08-29 | Oven door opening and closing device |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP09002011A Active EP2218859B1 (en) | 2009-02-13 | 2009-02-13 | Oven door opening and closing device |
Country Status (10)
Country | Link |
---|---|
US (1) | US9074400B2 (en) |
EP (2) | EP2218859B1 (en) |
CN (1) | CN102292512B (en) |
AT (1) | ATE521776T1 (en) |
AU (1) | AU2010213212B2 (en) |
BR (1) | BRPI1008428A2 (en) |
CA (1) | CA2752439A1 (en) |
PL (2) | PL2218859T3 (en) |
SI (1) | SI2218859T1 (en) |
WO (1) | WO2010091770A1 (en) |
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2009
- 2009-02-13 AT AT09002011T patent/ATE521776T1/en not_active IP Right Cessation
- 2009-02-13 SI SI200930104T patent/SI2218859T1/en unknown
- 2009-02-13 EP EP09002011A patent/EP2218859B1/en active Active
- 2009-02-13 PL PL09002011T patent/PL2218859T3/en unknown
- 2009-08-29 PL PL09011103T patent/PL2218860T3/en unknown
- 2009-08-29 EP EP09011103.0A patent/EP2218860B1/en active Active
-
2010
- 2010-01-20 CN CN201080005018.0A patent/CN102292512B/en not_active Expired - Fee Related
- 2010-01-20 CA CA2752439A patent/CA2752439A1/en not_active Abandoned
- 2010-01-20 BR BRPI1008428A patent/BRPI1008428A2/en not_active IP Right Cessation
- 2010-01-20 WO PCT/EP2010/000299 patent/WO2010091770A1/en active Application Filing
- 2010-01-20 AU AU2010213212A patent/AU2010213212B2/en not_active Ceased
- 2010-01-20 US US13/147,233 patent/US9074400B2/en not_active Expired - Fee Related
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US9964312B2 (en) | 2014-12-12 | 2018-05-08 | Hestan Commercial Corporation | Kitchen oven |
Also Published As
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SI2218859T1 (en) | 2011-12-30 |
AU2010213212A1 (en) | 2011-07-21 |
AU2010213212B2 (en) | 2016-03-10 |
CA2752439A1 (en) | 2010-08-19 |
US9074400B2 (en) | 2015-07-07 |
PL2218860T3 (en) | 2015-03-31 |
US20120067333A1 (en) | 2012-03-22 |
EP2218859A1 (en) | 2010-08-18 |
CN102292512B (en) | 2015-09-30 |
EP2218860A1 (en) | 2010-08-18 |
WO2010091770A1 (en) | 2010-08-19 |
EP2218859B1 (en) | 2011-08-24 |
CN102292512A (en) | 2011-12-21 |
BRPI1008428A2 (en) | 2018-06-12 |
PL2218859T3 (en) | 2012-01-31 |
ATE521776T1 (en) | 2011-09-15 |
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